23rd week of 2017 patent applcation highlights part 69 |
Patent application number | Title | Published |
20170163073 | ENERGY STORAGE ROBOT - An energy storage robot configured to be used to power electric underground equipment, the energy storage robot including a propulsion system being arranged to move the energy storage robot, an energy storage unit, a control unit being connected to the propulsion system and the energy storage unit. The energy storage unit is connectable to the electric underground equipment for powering the electric underground equipment and the control unit is arranged to communicate a level of energy of the energy storage unit to a coordinating module or another energy storage robot. | 2017-06-08 |
20170163074 | POWER INFORMATION MANAGEMENT DEVICE AND POWER INFORMATION MANAGEMENT SYSTEM - There is provided a power information management device communicable with at least one another device and being able to perform one of mutual power supply and unidirectional power supply, comprising: a requesting unit configured to send a request for information concerning electric power to the at least one another device; a receiving unit configured to receive the power information from the at least one another device which has received the request; and a generating unit configured to generate power information concerning electric power of a plurality of devices including the power information management device and the at least one another device based on the information received from the at least one another device. | 2017-06-08 |
20170163075 | AUDIENCE RESPONSE SYSTEM WITH BATTERYLESS RESPONSE UNITS - A wireless response system and method of receiving user input selections at a base station includes distributing a plurality of response units to users. The response units wirelessly communicate with the base station in order to retrieve user responses received by the response units. Each of the response units has a user input device that is configured to receiving user input selections, a controller that is responsive to the user input device to process user inputs and to communicate responses wirelessly to the base station and a power supply having a super capacitor. The super capacitor is charged with a wireless-charging circuit and current is supplied from the super capacitor to the controller. Current supplied to the controller is controlled. | 2017-06-08 |
20170163076 | DEVICE FOR PERFORMING WIRELESS CHARGING AND METHOD THEREOF - An electronic device is provided. The electronic device includes a communication circuit that wirelessly transmits and receives power to and from an external electronic device, a sensor circuit that collects a sensor signal associated with a state of the electronic device, and a processor that determines an arrangement relationship with the external electronic device through the sensor circuit, and based on the determined arrangement relationship, receives a first notification signal, which provides notification that an event occurs in the external electronic device or transmits a second notification signal, which provides notification that an event occurs in the electronic device. | 2017-06-08 |
20170163077 | SOLAR POWERED CELL PHONE CHARGING DEVICE - A solar powered cell phone charging device has been disclosed that provides a cell phone case with integrated solar panels and a power connector coupled to the case for connecting to a cell phone charging port, allowing the user to charge a cell phone by using solar power. In an increasingly digital age, with further reliance on cell phones for almost every aspect of daily life, there exists a need to be able to portably charge a cell phone. Further, there exists a need to perform this charging through renewable energy sources, rather than non-renewable sources, due to the cost and deletion of non-renewable energy sources. Finally, there exists a need to be able to portably charge cell phones without being tethered to a wall or a portable battery pack, which must be independently charged through traditional non-renewable energy sources. | 2017-06-08 |
20170163078 | DEFORMABLE ELECTRONIC DEVICE AND WIRELESS CHARGING SYSTEM - An embodiment provides an electronic device comprising: a body; a battery disposed within the body; a first portion extending from the body; a second portion extending from the body; and a charging coil disposed within at least the first portion and the second portion that charges the battery. Other aspects are described and claimed. | 2017-06-08 |
20170163079 | METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER TRANSMISSION - A method and an apparatus for controlling wireless power transmission are provided. An apparatus for controlling wireless power transmission includes a controller configured to determine an output voltage of a power factor correction unit based on charging information of a battery, the power factor correction unit configured to correct an input voltage into the determined output voltage, and output a variable voltage, and a resonance unit configured to transmit power converted from the variable voltage to a wireless power reception apparatus. | 2017-06-08 |
20170163080 | Computing Device Inductive Charging Cases and Methods of Use - Electrical inductive charging device chassis and cases are provided herein. An example charging case includes a device receiving tray, a sliding tray having a charging interface and an inductive charging base, a stabilizer tray, and a gear having teeth that cooperate with a grooved track of the sliding tray such that when the gear is rotated, the teeth of the gear translate the sliding tray backwards and forwards to retract and extend the sliding tray and charging interface. Another example charging case includes a device receiving tray that protectingly surrounds a computing device, an inductive charging base, a charging interface selectively extendable from the charging case, and an extendable stabilizer that is translatable between a stored configuration and a deployed configuration. | 2017-06-08 |
20170163081 | REGULATING POWER FOR A WIRELESS COMMUNICATION DEVICE - A method is provided for managing power for a wireless communication device. The method includes receiving a loop current at an insertion voltage at an initial input, the loop current being generated by a power supply. The method further includes comparing a reference voltage to the insertion voltage and generating a feedback signal based at least upon the comparison of the reference voltage to the insertion voltage. The method still further includes regulating the insertion voltage based at least upon the feedback signal, delivering charging power to an electrical storage element, wherein the charging power is a function of the insertion voltage and the loop current, and storing the charging power in the electrical storage element. | 2017-06-08 |
20170163082 | ELECTRIC VOLTAGE SYSTEM AND METHOD FOR CHARGING A BATTERY OF AN ELECTRIC VOLTAGE SYSTEM - A high-voltage electrical system having at least one high-voltage battery and one solar module, wherein the high-voltage battery may be galvanically isolated from a voltage connection via at least one switch between a terminal of the high-voltage battery and the voltage connection, wherein at least one control device is associated with the high-voltage battery, which is designed such that the at least one control device generates at least control commands for the switch, wherein at least one DC/DC converter is arranged between the solar module and the high-voltage battery, which is designed such that the high-voltage battery is charged by the solar module, wherein the at least one DC/DC converter is designed as a galvanically isolated DC/DC converter, wherein the outputs of the DC/DC converter are directly connected to the high-voltage battery. Also disclosed is a method for charging a high-voltage battery by a solar module. | 2017-06-08 |
20170163083 | PHOTOVOLTAIC CELL ACCESSORY FOR A BATTERY POWERED DEVICE - A power management system includes a battery circuit element connected in parallel with a load and including a non-rechargeable battery and a first diode connected in series with the non-rechargeable battery, a capacitor circuit element connected in parallel with the battery circuit element and including a capacitor connected in series with a second diode, and a photovoltaic cell circuit element connected in parallel with the capacitor circuit element and including a photovoltaic cell connected in series with a third diode. The first and second diodes are configured such that when a voltage of the non-rechargeable battery exceeds a voltage of the capacitor, the non-rechargeable battery supplies current to the load to power the load, and when the voltage of the capacitor exceeds the voltage of the non-rechargeable battery, the capacitor supplies current to the load to power the load. | 2017-06-08 |
20170163084 | TWO-TIER BATTERY SOLUTION FOR DATA CENTER BACKUP - Methods, systems, and apparatus, including for back-up power sources. In one aspect, a method includes providing a plurality of first battery devices, each first battery device respectively electrically coupled to a respective server rack in a plurality of server racks and having a respective capacity to provide power to the respective rack for a power anomaly for up to a first duration. Providing a second battery device electrically coupled to the plurality of server racks and having a capacity to provide power to the plurality of respective server racks for a power anomaly for up to a second duration, wherein the second duration is longer than the first duration. A power anomaly is a deviation of mains power from one or more of a nominal supply voltage and frequency. | 2017-06-08 |
20170163085 | REDUCING POWER LOSSES IN A REDUNDANT POWER SUPPLY SYSTEM - A power supply system includes at least a first power supply module and at least one redundant power supply module. The at least one power supply module supplies power to an output terminal. The at least one redundant power supply module operates in a first state and in a second state. In the first state the second power supply module supplies power to the output terminal. In the second state the second power supply module provides standby power and operates in a burst mode (for example, such as a discontinuous conduction mode). | 2017-06-08 |
20170163086 | AUTOMATIC UPS BYPASS LOAD SHARING - According to one aspect, embodiments herein provide a UPS system comprising: a plurality of UPS's configured to be coupled in parallel, each UPS comprising: a bypass line selectively coupled between an input and an output via a bypass switch, wherein the bypass switch is configured to close in a first mode and to open in a second mode, and a controller coupled to the plurality of UPS's and configured to, in response to a determination that input power is at a desired level, control the bypass switch of a first UPS in the plurality of UPS's to operate in the first mode and provide a continuous output current waveform with an RMS value to the load, and selectively control the bypass switch of each other UPS to operate in the first mode such that an output current waveform provided by each UPS includes at least one delay period. | 2017-06-08 |
20170163087 | DUAL-SOURCE POWER SUPPLY - A power supply for providing power to a load includes an alternating current (AC) power supply having a positive output and a negative output connected to a common ground; a direct current (DC) power supply connected to a same common ground as the AC power supply; a rectifier connected to an output of the AC power supply and the common ground that converts AC power to DC power an provides to an output of the power supply; a connection control circuit coupled between the DC power supply and the output that connects the DC power supply to the output when the AC power supply is inactive. | 2017-06-08 |
20170163088 | UNINTERRUPTIBLE POWER SOURCE - When power failure of an AC power source occurs during an eco-mode in which AC power is supplied via a bypass switch, an uninterruptible power source is configured to change over to inverter power supply in which AC power is supplied from an inverter. When turning off the bypass switch during power failure, a power conversion controller is configured to (i) control the converter to invert the DC power output by the battery into AC power and output the AC power to a node, and (ii) control the inverter to invert the DC power output by the battery into AC power and output the AC power to an output terminal. The power conversion controller controls the converter and the inverter such that phase and magnitude of an AC voltage output to the node become equal to phase and magnitude of an AC voltage output to output terminal. | 2017-06-08 |
20170163089 | Control of Multiple Battery Groups - A power conversion and control system includes a power battery group and an energy battery group. The energy battery group is connected to a DC converter, the DC converter output being connected to a bus, and the power battery group is connected directly to the bus, so that operatively the voltage of the bus is variable. | 2017-06-08 |
20170163090 | POWER SUPPLY DEVICE - An electric power supply device for supplying electric power from a supply side device to a receiver side device including a mechanism section that operates intermittently with a drive voltage and a receiver side control section that controls an operation of the mechanism section with a control voltage that is lower than the drive voltage, the electric power supply device including: a regulator section, which is provided on the receiver side device, that converts a received voltage received via an electric power supply into the control voltage; a supply voltage adjusting section, which is provided on the supply side device, that adjustably supplies the received voltage; and a supply side control section, which is provided on the supply side device, that controls the received voltage by controlling the supply voltage adjusting section. | 2017-06-08 |
20170163091 | WIRELESS POWER TRANSMITTER - Embodiments provide a wireless power transfer technology, and more particularly, provide a wireless power transmitter, which may improve wireless power transfer efficiency, thereby achieving increased performance. The wireless power transmitter includes a Printed Circuit Board (PCB), a first transmission coil attached to a first surface of the PCB, a second transmission coil and a third transmission coil, each attached to a second surface of the PCB so as to overlap the first transmission coil, and a control circuit board for controlling wireless power transfer through the first to third transmission coils. | 2017-06-08 |
20170163092 | TESSELLATED INDUCTIVE POWER TRANSMISSION SYSTEM COIL CONFIGURATIONS - A system for inductive power transmission includes at least one interface surface and a plurality of triangular coil elements positioned underneath the interface surface such that at least one edge of the respective triangular coil element is adjacent to an edge of at least one other of the triangular coil elements. Each of the triangular coil elements may be operable to inductively transmit power to at least one coil of at least one electronic device and/or inductively receive power from the coil of the electronic device. Each triangular coil element may be operable to detect the proximity of one or more inductive coils of one or more electronic devices and inductively transmit power upon such detection at different frequencies, power levels, and/or other inductive power transmission characteristics. | 2017-06-08 |
20170163093 | RESONANT TYPE POWER TRANSMISSION SYSTEM AND RESONANCE TYPE POWER TRANSMISSION DEVICE - A second resonant type transmission power supply device | 2017-06-08 |
20170163094 | COUPLED RESONATOR IN A METAL BACK COVER - An electronic device is disclosed, having electronic components and a metal case configured to house the electronic components. A power receiving element may be disposed on the metal case near an edge thereof. The power receiving element may couple with a magnetic field that emanates from the edge of the metal case, when the metal case is exposed to an externally generated magnetic field, to wirelessly receive power from the externally generated magnetic field. | 2017-06-08 |
20170163095 | WIRELESS POWER TRANSMITTER - A wireless power transmission system is presented. In some embodiments, a transmission unit includes a first inductor with a center tap, a first end tap, and a second end tap; a pre-regulator coupled to provide current to the center tap; a switching circuit coupled to the first end tap and the second end tap, the switching circuit alternately coupling the first end tap and the second end tap to ground at a frequency; and a resonant circuit magnetically coupled to the first inductor, the resonant circuit wirelessly transmitting power. In some embodiments, the switching circuit can be formed of FETs. The current provided to the center tap can be controlled in response to current sensors. | 2017-06-08 |
20170163096 | POWER TRANSMISSION APPARATUS AND POWER TRANSMISSION SYSTEM - A power transmission apparatus includes a driving circuit, a first power transmission coil that is driven by the driving circuit, a second power transmission coil that is arranged outside the first power transmission coil, a third power transmission coil that is arranged inside the first power transmission coil, and a switching circuit that performs connection switching so that the first power transmission coil is connected to either one of the second and third power transmission coils. The power transmission apparatus transmits power to a power reception coil without contact. | 2017-06-08 |
20170163097 | WIRELESS POWER TRANSMISSION APPARATUS AND METHOD - A wireless power transmission apparatus for tracking a charging capacity of each of a plurality of wireless power reception apparatuses in an environment in which the plurality of wireless power reception apparatuses are charged includes a communication unit configured to receive information about either one or both of a charging support power and a requested power from each of the plurality of wireless power reception apparatuses, a controller configured to determine a charging capacity for a wireless power reception apparatus supporting the charging support power among the plurality of wireless power reception apparatuses based on the information about the charging support power, and a power tracker configured to re-track the determined charging capacity based on charging status information received from the plurality of wireless power reception apparatuses. | 2017-06-08 |
20170163098 | WIRELESS POWER TRANSMISSION SYSTEM AND WIRELESS POWER RELAY APPARATUS - A wireless power relay apparatus includes a relay resonator configured to relay power from a source resonator configured to wirelessly transmit the power, to a target resonator configured to wirelessly receive the power through a mutual resonance, the relay resonator having a higher quality factor than the source resonator and the target resonator. | 2017-06-08 |
20170163099 | WIRELESS POWER TRANSMISSION SYSTEM - A wireless power transmission system according to the present disclosure includes: a pair of antennas, between which power is transmissible wirelessly by resonant magnetic coupling at a frequency f0, one of which is a series resonant circuit, and the other of which is a parallel resonant circuit; and a control section, which controls a transmission frequency according to the magnitude of the power being transmitted between the antennas. If the power transmitted between the antennas is greater than a reference value P1, the control section sets the transmission frequency to be a value that falls within a first level range that is higher than the frequency f0. But if the power is smaller than the reference value P1, then the control section sets the transmission frequency to be a value that falls within a second level range that is lower than the first level range. | 2017-06-08 |
20170163100 | FOREIGN OBJECT DETECTION IN INDUCTIVE POWER TRANSFER FIELD - A method for determining the presence of a foreign object in an inductive power transfer field in which control circuitry of an inductive power system performs the steps of: providing power to a direct current to alternating current converter; providing power from the converter to a transmitter coil in the inductive power transfer field; waiting for the current in the transmitter coil to stabilize; estimating the reactive power in the transmitter coil; estimating the real power in the transmitter coil; and using the estimated reactive power and estimated real power to determine whether a foreign object is present. | 2017-06-08 |
20170163101 | METHODS AND DEVICES FOR PROTECTION IN WIRELESS POWER SYSTEMS - A wireless power system and methods for operating the same are provided for protection of a wireless power receiver during wireless power transfer. A signal strength limit for the wireless power transmitter is determined based upon a receiver limit, a sensitivity of the wireless power receiver and a scaling factor of the wireless power transmitter. | 2017-06-08 |
20170163102 | COMMUNICATION APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM - A communication apparatus includes first communication means having a first communication function for wirelessly communicating with a partner apparatus, and second communication means having an electric power supply function for wirelessly supplying electric power to the partner apparatus and a second communication function for wirelessly communicating with the partner apparatus. The second communication function is for transmitting specific data sequence to the partner apparatus in response to reception of specific data from the partner apparatus, and the electric power supply function is for supplying electric power to the partner apparatus in a case of receiving from the partner apparatus, with the first communication means, a signal indicating that the partner apparatus has received the data sequence. | 2017-06-08 |
20170163103 | MAGNET ASSEMBLY - A magnet assembly can include a base assembly and a cover assembly. The base assembly can extend along a longitudinal axis and include a base, a shaft, a first cylinder, and a first plurality of magnets. The cover assembly can extend along the longitudinal axis and include a cover, a second cylinder, and a second plurality of magnets. The base assembly and the cover assembly can be selectively engageable. The first plurality of magnets and the second plurality of magnets can be arranged such that the shaft is driven in rotation by magnetic repulsion of the first plurality of magnets relative to the second plurality of magnets when the base assembly and the cover assembly are engaged with one another. The second cylinder can be fixedly engaged with the cover. | 2017-06-08 |
20170163104 | Single Phase Permanent Magnet Motor - A single phase permanent magnet motor includes a stator and a rotor. The stator includes a stator corer and windings. The stator corer includes a yoke portion and stator teeth. Each stator tooth includes a winding portion and a pole shoe connected to an end of the winding portion. Each pole shoe includes a pole face. The pole face defines a first positioning notch at a middle thereof. Each of the pole faces further defines at least one second positioning notch. Said at least one second positioning notches in one of pole shoe are located at the same side of the first positioning notch of the corresponding one pole shoe. The first and second positioning notches are configured such that an initial position of the rotor received in the space of the stator is offset from a dead point position. | 2017-06-08 |
20170163105 | STATOR ASSEMBLY UNIT OF DRIVE MOTOR - A stator assembly unit of a drive motor is provided. The stator assembly unit of a drive motor includes a housing and a securing member that has an annular shape is mounted to an interior circumferential surface of the housing and is configured to secure a stator core. A cooling water flow passage through which cooling water flows is integrally formed in the securing member and cooling fins are formed at both sides of a flow center of the cooling water. | 2017-06-08 |
20170163106 | ROTOR FOR A RELUCTANCE MACHINE - A rotor for a reluctance machine includes a central rotor support rigidly connected to a machine shaft extending laterally along a central axis of the machine. The rotor support has an outer rotor support surface. A non-ferromagnetic channel support is rigidly affixed to the rotor support surface and projects radially relative to the central axis from the rotor support surface to define an outer rotor diameter of the rotor. The rotor also includes an array of arcuate ferromagnetic flux guide channels. The flux guide channels are embedded in the non-ferromagnetic channel support, wherein portions of the channel support abutting the flux guide channels function as non-ferromagnetic flux barriers. The flux barriers provide structural support for the flux guide channels. | 2017-06-08 |
20170163107 | PERMANENT-MAGNET-EMBEDDED ELECTRIC MOTOR AND COMPRESSOR - A permanent-magnet-embedded electric motor includes a stator core; a rotor core disposed on an inner diameter side of the stator core and including a plurality of magnet insertion holes corresponding to the number of magnetic poles; and a plurality of permanent magnets arrayed in a rotating direction in the magnet insertion holes. Gaps between two permanent magnets adjacent to each other among the permanent magnets disposed in the magnet insertion holes are formed such that the gaps on the radially outer side are larger than the gaps on the radially inner side. | 2017-06-08 |
20170163108 | ELECTRIC MACHINE HAVING MECHANICAL FIELD WEAKENING AND INCLUDING A FAIL-SAFE ACTUATOR SYSTEM - A dynamoelectric permanently excited machine having the possibility of mechanical field weakening. The machine includes a stator ( | 2017-06-08 |
20170163109 | DYNAMOELECTRIC MACHINE INCLUDING DISPLACEABLE FLUX-GUIDING ELEMENTS - A dynamoelectric machine having mechanical field weakening is provided. A design that is advantageous in terms of efficiency is brought about by a machine having a stator ( | 2017-06-08 |
20170163110 | ROTOR OF ROTARY ELECTRIC MACHINE - A rotor includes a rotor core and a permanent magnet. A core refrigerant passage is configured to guide refrigerant supplied from a shaft refrigerant passage to an outer peripheral end of the rotor core. The first refrigerant passage extends from an inner peripheral end of the rotor core to a position inside the permanent magnet. The first refrigerant passage is placed at a position deviating from a q-axis of the rotary electric machine in a circumferential direction. The second refrigerant passage is provided on the q-axis. The second refrigerant passage extends from the outer peripheral end of the rotor core toward an inner peripheral side in the rotor core. The third refrigerant passage configured to provide communication between the first refrigerant passage and the second refrigerant passage, the third refrigerant passage being placed at a position deviating from the second refrigerant passage in a rotor axis direction. | 2017-06-08 |
20170163111 | ROTOR OF ELECTRIC MOTOR - A rotor of an electric motor including a rotor core, two conductive end plates, a plurality of conductors and a casting metal is provided. The rotor core has a central hole and a plurality of slots surrounding the central hole at a predetermined interval. The two conductive end plates, disposed at two ends of the rotor core, have a plurality of fixing structures, respectively. A plurality of cavities is disposed between two neighboring fixing structures and the shape and the positions of the cavities correspond to that of the slots. The conductors are shaped as long bars and penetrate the slots. Two ends of the conductors are fixed by the fixing structures. The casting metal is injected into the cavities and the slots, and further covers the peripheral of the conductors and the fixing structures, two ends of the rotor core and outside of the two conductive end plates. | 2017-06-08 |
20170163112 | Axial Air-Gap Rotary Electric Machine - The present invention provides an axial air-gap rotary electric machine that is provided with: a stator in which a plurality of core members, which have an iron core, a coil that is wound around the outer periphery of the iron core, and a bobbin that is disposed between the iron core and the coil, are arranged in a circular shape centred around a rotational axis; and at least one rotor that faces an end surface of the iron core with a prescribed air gap therebetween in the radial direction of the rotational axis. Therein, the bobbin has a cylinder portion into which the iron core is inserted, and a flange portion that extends for a prescribed length around the outer periphery of the cylinder portion and in a vertical direction, and the coil is wound around the outer periphery of the cylinder portion by regular winding, and is formed by a sequence of layers wherein the number of turns for each layer wound further to the outside than the layer that is wound so as to be in contact with the flange portion is at least one less than the number of turns in the adjoining inner layer. | 2017-06-08 |
20170163113 | ROTATING ELECTRIC MACHINE ROTOR - This rotating electric machine rotor has a rotor coil composed of; a lower coil field wound around the outer circumference of a winding drum portion of a bobbin; and a mountain-wound coil field wound around the outer circumference of the lower coil field. A cross point in the mountain-wound coil field and a cross point in the lower coil field are shifted from each other in the circumferential direction. Thus, it becomes possible to shift the cross point positions without changing the thickness of the winding drum portion of the bobbin and without using a tape or the like. | 2017-06-08 |
20170163114 | MOTOR-GENERATOR WITH MULTIPLE STATOR WINDINGS - A motor-generator includes a stator disposed along a centerline including a stator pole, a first stator winding and a second stator winding, wherein the first stator winding is wound on the stator pole and the second stator winding is wound on the stator pole, and at least one rotor axially disposed from the stator along the centerline. | 2017-06-08 |
20170163115 | CONVERTER, ELECTRICAL POLYPHASE SYSTEM AND METHOD - An electric machine has a multiplicity of windings having a first terminal and a second terminal. At least one node exists to which one of the two terminals of a respective winding from the multiplicity of windings is electrically connected. The corresponding other terminal of a respective winding from the multiplicity of windings is electrically connected to a phase terminal, and to a modular multilevel converter that has a multiplicity of individual modules that are connected up in series to form a ring. At least one tap can be arranged between two respective adjacent individual modules and provides a phase terminal to which the first or the second terminal of a winding from the multiplicity of windings of the electric machine is electrically connected. A number of taps of the modular multilevel converter corresponds exactly to a number of windings from the multiplicity of windings of the electric machine. | 2017-06-08 |
20170163116 | Rotating Electric Machine - A coil support structure including a coil spacer, a yoke spacer, and a support formed between the coil spacer and the yoke spacer. And the support has laterally protruding parts. | 2017-06-08 |
20170163117 | STATOR OF DRIVING MOTOR AND COIL CONNECTION ASSEMBLY OF THE STATOR - A stator of a driving motor and a coil connection assembly of the stator is provided. The coil connection assembly of the stator of the driving motor includes a coil connection portion that is drawn from a stator coil wound on a stator core in multiple strands. A ring terminal is electrically connected to the coil connection portion. The ring terminal includes a cylindrical connection compressing portion fitted with multiple strands of coils of the coil connection portion that are compressed by a set pressing force and connected with the coils. A bolt fixing portion is integrally formed with the connection compressing portion and has a engagement bore configured to engage a bolt. Conductive protrusions that penetrate an insulating film of coils of the coil connection portion by the set pressing force are formed on the inner periphery of the connection compressing portion. | 2017-06-08 |
20170163118 | STATOR OF MOTOR AND INNER ROTOR-TYPE MOTOR INCLUDING STATOR - A stator of a motor comprises a core section including a core outer circumference part forming an annular shape and a plurality of core tooth parts projecting radially inward from the core outer circumference part; an insulator covering at least an outer circumference of each of the core tooth parts and an end face in an axial direction of the core outer circumference part; a coil wound on each of the core tooth parts via the insulator; and a terminal attached to the core outer circumference part via the insulator, an end portion of the coil being connected to the terminal, wherein the terminal includes: a leg portion extending in the axial direction; a hook portion including an open end opened in the axial direction and disposed on the core outer circumference part at a position corresponding to one of the core tooth parts in a circumferential direction, the end portion of the coil being connected to the hook portion; and a coupling portion extending from the leg portion in the circumferential direction along the core outer circumference part and connected to the hook portion, the insulator includes a terminal holding portion, to which the leg portion is attached, at a position in the end face of the core outer circumference part in a position not corresponding to the core tooth parts in the circumferential direction and a position corresponding to the leg portion of the terminal, the hook portion includes: a base end portion located on an outer side in the radial direction; a side piece portion located on the inner side in the radial direction to be arranged side by side with the base end portion; and a connecting portion connecting an end portion of the base end portion and an end portion of the side piece portion located on an opposite side of the open end side and forming a closed end, and the coupling portion of the terminal is bent to locate the hook portion radially outside the core tooth parts. | 2017-06-08 |
20170163119 | Connection Ring Arrangement for an Electrical Machine - A connection ring arrangement, includes a plurality of conducting rings, and a support element which holds the plurality of conducting rings. The support element has a projection arrangement having two projections which are designed receive the conducting ring and which extend from said conducting ring. The projection arrangement has an open end and a closed end, which closed end receives the conducting ring. The distance between the projections is at least partially smaller than the diameter of the conducting ring and at least one projection is at least partially elastically formed in a direction transverse to the longitudinal direction of the projection. The projections are designed such that the conducting ring is inserted between the projections. | 2017-06-08 |
20170163120 | ROTOR FOR WOUND ROTOR SYNCHRONOUS MOTOR - A rotor of a wound rotor synchronous motor includes: a rotor body coupled to a rotation shaft and around which a rotor coil is wound; and a slip ring module mounted on one portion of the rotation shaft, the slip ring module comprising a brush contact portion configured to contact a brush, a terminal mounting portion connected to the brush contact portion, and a fusing terminal mounted at an exterior circumferential surface of the terminal mounting portion and connected to the rotor coil. | 2017-06-08 |
20170163121 | ROTOR OF WOUND ROTATE SYNCHRONOUS MOTOR - A rotor of a WRSM motor is provided. The rotor of the WRSM motor includes a rotor body that has a rotary shaft joined to the center thereof and wound with a rotor coil and a slip ring module that is installed on an end of the rotary shaft to slidably move in an axial direction of the rotary shaft and that is electrically connected with a connection end of the rotary coil. A pair of first connectors is installed in the slip ring module to protrude toward the rotary body and a pair of second connectors is installed to connect the rotor body and the connection end of the rotor coil and is connected with the first connectors by a female and male connection method. | 2017-06-08 |
20170163122 | COVER DEVICE FOR AN ELECTRONICS HOUSING OF AN ELECTRIC MOTOR - The invention concerns a cover device for an electronics housing of an electric motor with at least one base segment and at least one rib formed on the base segment, wherein the base segment is geometrically configured so as to cover at least part of the surface of an electronics housing opening for drawing in a cooling air volume flow in order to close the electronics housing opening at least for a portion against the intrusion of solids, and the base segment forms with the at least one rib at least one flow duct, which can be fluidically connected to the electronics housing opening, and wherein the cover device is designed as a modular insert for the electronics housing. | 2017-06-08 |
20170163123 | Method and Apparatus to Drive a Rotor and Generate Electrical Power - An electromagnetic power generator device and a method thereof for using balanced electromagnetic forces to drive one or more flywheel rotor assemblies on a fixed shaft and generating large amount of electrical power are provided. The electromagnetic power generator device includes a non-rotating shaft attached to a support frame, at least one flywheel rotor assembly, and at least one input driver plate assembly which is coupled to the flywheel rotor assembly via the non-rotating shaft penetrating through a first centered hole of a bearing of the flywheel assembly and a second centered hole of the input driver plate assembly. | 2017-06-08 |
20170163124 | POWER GENERATION APPARATUS USING HEAD OF WASTEWATER IN BUILDING - A power generation apparatus using a head of wastewater in a building includes an inclined water discharge pipe connected to an end of a wastewater pipe installed in the building through one end thereof, to divert a moving path of wastewater falling through the wastewater pipe, a cavity part coupled to the other end of the inclined water discharge pipe, to receive the wastewater discharged through the other end of the inclined water discharge pipe, and a rotating body installed inside of the cavity part, to be rotated by the wastewater discharged through the other end of the inclined water discharge pipe. Power is generated using a head of wastewater generated in a high-rise building or an apartment, and electricity generated using the wastewater is used as common electricity inside/outside the building. Therefore, smooth power supply can be achieved. | 2017-06-08 |
20170163125 | ELECTRIC MACHINE WITH IMPROVED COOLING - An electric machine includes a housing having a first hollow cylinder-shaped housing element for guidance of a first cooling medium in a first axial direction, and a second hollow cylinder-shaped housing element in which the first housing element is arranged. Arranged in the first housing element is a hollow cylinder-shaped stator and a rotor which is mounted in the stator for rotation about a rotational axis. A heat exchanger cover is arranged between the first and second housing elements and includes a guide element running helically about the rotational axis, and pipes extending axially and passing through the guide element. The heat exchanger cover guides the first cooling medium between the pipes in a helical manner along the at least one guide element in a second axial direction which runs opposite to the first axial direction, and guides a second cooling medium through the pipes in an axial direction. | 2017-06-08 |
20170163126 | INTERFERENCE SUPPRESSION FILTER FOR A DC MOTOR AND DC MOTOR HAVING SAID FILTER - The present invention relates to an interference suppression filter for a DC motor ( | 2017-06-08 |
20170163127 | ACTIVE RECTIFIER FOR ALTERNATOR - An active rectifier of a rotary electric machine, in particular an active rectifier for alternators, for example for rectifying alternating currents (AC) to direct currents (DC) for charging batteries on vehicles, is disclosed. The active rectifier may include a plurality of power MOSFET transistors and a detecting and driving circuitry all mounted on a single substrate to form a half-bridge module. A number of at least two and up to N modules may be connected together to serve as a two and up to N-phase rectifier. Each module is connected in a way to rectify currents from one phase of the electric machine and has an individual power supply for the detecting and driving circuitry. The power supply may receive the power from the phase which is being rectified and operates independently of the alternator's voltage regulator. | 2017-06-08 |
20170163128 | Actuator Having a Position Sensor - The present disclosure relates to actuators in general. In some embodiments, an actuator system may include an electric motor having motor terminals and driving the actuator; a control unit operating the electric motor; and an active electronic position sensor for detecting a position of an actuator. Electrical energy for the operation of the position sensor is tapped from the control unit via the motor terminals. The terminals of the control voltage U | 2017-06-08 |
20170163129 | ELECTRICAL DEVICE AND METHOD OF ASSEMBLING SUCH AN ELECTRICAL DEVICE - The invention relates to an electrical device ( | 2017-06-08 |
20170163130 | ELECTRONIC ARCHITECTURE INTENDED TO SUPPLY AN ELECTRIC MACHINE FOR AUTOMOTIVE VEHICLE - The subject of the invention is an electronic architecture ( | 2017-06-08 |
20170163131 | Laminate Carbon Brush for Fuel Pump Motor - A laminated carbon brush for a liquid pump motor slides in a liquid fuel on a disk-like commutator. The laminated carbon brush includes two layers of a lower resistivity layer and a higher resistivity layer. In both the lower resistivity layer and the higher resistivity layer, circular directional resistivities of the brush along a circular direction in the rotation of the commutator are higher than non-circular directional resistivities of the brush along a radial direction of the commutator and a perpendicular direction to the sliding surface of the commutator. A non-circular directional resistivity of the higher resistivity layer are higher than or equal to 90,000μΩ·cm. No spark discharges occur if the fuel pump motor is operated to output a high power. | 2017-06-08 |
20170163132 | ELECTRODYNAMIC APPARATUS AND METHOD FOR SEPARATING NON-FERROUS CONDUCTIVE BLANKS - An electrodynamic apparatus for separating electrically conductive, non-ferrous, blanks includes a linear induction machine (LIM) stator, a polyphase power source, and a controller. Stator slots are wound with polyphase AC windings. The power source outputs a polyphase voltage or current. The controller supplies the windings with the voltage or current via the power source to induce an electric current in an uppermost blank and produce a traveling wave magnetic field. The electric current and magnetic field generate a force on the uppermost blank sufficient for separating the uppermost blank from an adjacent blank in the stack. A method for separating the blanks includes positioning the stack with respect to the apparatus and supplying the windings with AC voltage or current via the power source to generate the traveling wave magnetic field and induce the electric current, and ultimately generate the force on the uppermost blank. | 2017-06-08 |
20170163133 | METHOD FOR MANUFACTURING DYNAMO-ELECTRIC MACHINE - A predetermined part of one conductive wire is pressurized and plastically worked to form a slot portion having a desired cross section, a part separated from the slot portion by a predetermined dimension is pressed to form a top portion, and then a part separated from the top portion by a predetermined dimension is plastically worked to form the next slot portion. Through repetition of such steps, a conductive wire in which necessary numbers of slot portions and top portions are formed is manufactured. Using the top portion as a reference, the conductive wire is folded to form a coil end portion and is wound by a plurality of turns into a hexagonal shape, thereby forming a hexagonal coil in which the conductive wire is wound by a predetermined number of turns. In the hexagonal coil, bundles of the slot portions become two opposite sides and are inserted in the slots of the armature. | 2017-06-08 |
20170163134 | ROTOR FOR A SLIP RING MOTOR AND SLIP RING MOTOR - A rotor for a slip ring motor includes a hollow shaft with an open end, a plurality of electric cables, and a cable guide arranged in the open end guiding the electric cables from inside the hollow shaft towards connection points of the electric cables outside of the hollow shaft. | 2017-06-08 |
20170163135 | INDUCTION MOTOR ROTOR AND A METHOD OF MANUFACTURING THE SAME - A method of manufacturing an induction motor rotor assembly, the method includes the steps of: providing a rotor; machining a plurality of re-entrant slots axially along an outer surface of the rotor; positioning a sleeve concentrically over the outer surface of the rotor; applying a friction stir welding process to the sleeve along each re-entrant slot axially along the outer surface of the rotor to cause the sleeve material to plasticise and flow into the axial re-entrant slot to form an axial re-entrant slot bar; and providing an electrical connection at each of the opposing axial ends of the rotor between respective ones of opposing ends of each of the axial re-entrant slot bars to thereby form the induction motor rotor. | 2017-06-08 |
20170163136 | LAMINATION PACK AND METHOD OF FORMING SAME - A lamination pack for a motor and method of forming the lamination pack is provided. The method includes inserting a plurality of conductor bars into a plurality of rotor slots defined by a lamination stack such that opposing bar ends of the conductor bars extend from opposing end faces of the lamination stack, skewing the lamination stack and the conductor bars to a skew angle relative to a rotation axis of the lamination stack, and subsequently bending the bar ends of the conductor bars in opposing radial directions to a locking angle greater than the skew angle, to lock each of the conductor bars in its respective rotor slot. The bent bar ends exert a compressive axial locking force on the lamination stack to prevent axial and radial movement of the laminations in the lamination stack and to prevent axial movement of the conductor bars relative to the lamination stack. | 2017-06-08 |
20170163137 | FEMALE CONTACT ELEMENT FOR A SLIP RING MOTOR AND SLIP RING MOTOR - A female contact element for a slip ring motor with a power output >1 MW. The female contact element is configured for engagement with a male contact element to make an electrical connection between the female contact element and the male contact element. The female contact element is made of a Cu—Be-alloy. | 2017-06-08 |
20170163138 | ELECTRIC TRACTION DRIVES - Inventive embodiments are directed to components, subassemblies, systems, and/or methods for electric traction drives employing a continuously variable transmission (CVT) having a variator provided with a plurality of tilting traction planets and opposing traction rings. In one embodiment, an electric traction drive is provided with an electromotive device configured to transfer power to or from a traction sun of a CVT. In other embodiments, an electric traction drive is provided with an electromotive device that couples to certain components of a CVT such as a traction ring, a carrier assembly, and a main axle. Various inventive shifting assemblies having shift cams and shift cam cages can be used to facilitate adjusting the transmission speed ratio of a CVT. Various related devices include embodiments of, for example, a power input apparatus, a speed ratio shifter, a shift cam actuator, a shift nut, and a carrier assembly configured to support the tilting traction planets. | 2017-06-08 |
20170163139 | ELECTROMAGNETIC MOTOR - An electromagnetic motor includes a stator and an armature arranged to move substantially linearly relative to the stator in an intended direction during operation of the motor. A first and second flexure are connected to a first end of the armature. Each flexure has a longest portion which lies substantially in a plane that intersects a plane in which the armature lies at a substantially right angle. The flexures allow motion of the armature in the intended direction while resisting motion of the armature in one or more other degrees of freedom. | 2017-06-08 |
20170163140 | DISPLACEMENT DEVICES, MOVEABLE STAGES FOR DISPLACEMENT DEVICES AND METHODS FOR FABRICATION, USE AND CONTROL OF SAME - A displacement device comprises a stator comprising non-parallel stator-x and stator-y elongated traces. The device comprises a moveable stage comprising a first magnet array comprising first magnetization segments linearly elongated in a stage-x direction and having magnetization directions generally orthogonal to the stage-x direction. The first magnet array comprises a first pair of adjacent first magnetization segments comprising two first magnetization segments adjacent to one another in a stage-y direction non-parallel to the stage-x direction. Each first magnetization segment in the first pair has a corresponding magnetization direction oriented at a corresponding angle α | 2017-06-08 |
20170163141 | SYSTEM, METHOD, AND APPARATUS FOR ENERGY RECAPTURE USING INDUCTION - A system, method, and apparatus for recapture of energy using induction is disclosed. One or more conductive loops may be placed adjacent to a path, for example, a lane of a freeway or a railroad track. The loops may be connected to an electrical conditioning unit. When a magnetized object travels across the path (e.g. car or train), electricity may be produced in the loops by induction. The electricity thus produced may be conditioned, used locally, stored, or sent back to the grid for use. | 2017-06-08 |
20170163142 | SWITCHED MODE POWER SUPPLY COMPENSATION LOOP - There is provided a controller for controlling an output current of a switched mode power supply, SMPS. The controller comprises a sampling module arranged to sample a signal indicative of the output current of the SMPS at a frequency higher than a switching frequency of the SMPS, and a filter module arranged to filter out a ripple component of the sampled signal. The filter module comprises: a ripple component estimation module arranged to estimate the ripple component; a moving average calculation module arranged to calculate a moving average of the sampled signal; and a subtraction module arranged to generate a filtered signal by subtracting the estimated ripple component from the sampled signal and the calculated moving average. The controller also has a switching control module arranged to generate a control signal for controlling at least one of the switching frequency and a switching duty cycle of the SMPS based on the filtered signal. | 2017-06-08 |
20170163143 | PROTECTION CIRCUIT - The invention provides a protection circuit applied in an inductive boost converter, the inductive boost converter includes a transmission circuit and a charging circuit, the protection circuit includes a detection circuit and a control circuit, an input terminal of the detection and an output terminal of the transmission circuit are connected, a first output terminal of the detection circuit and an input terminal of the charging circuit are connected, a second output terminal of the detection circuit and an input terminal of the control terminal are connected; the detection circuit detects whether an input current from the transmission circuit is a short-circuit current, if the circuit is shorted, the result will be sent to the control circuit, the control circuit cuts the connection of the charging circuit and ground, which can prevent charges stored in the charging circuit from flowing backward into the input terminal of the inductive boost converter. | 2017-06-08 |
20170163144 | POWER SUPPLIES HAVING A SINGLE ISOLATION DEVICE FOR FEEDBACK AND FAULT DETECTION - According to some aspects of the present disclosure, isolated power supplies and corresponding control methods are disclosed. Example isolated power supplies include a transformer, at least one power switch coupled to the transformer, a controller, an output terminal, and a feedback circuit coupled to the output terminal to sense the output voltage and compare the sensed output voltage to a voltage reference. The power supplies include a fault detection circuit to sense the output voltage, compare the sensed output voltage to a fault reference, and modify a feedback signal when the sensed output voltage exceeds the fault reference. The power supplies also include a single isolation device coupled between the feedback circuit and the controller. The controller is operable to control the power switch based on the feedback signal and to detect a fault condition when a slew rate of the feedback signal exceeds a fault threshold slew rate value. | 2017-06-08 |
20170163145 | Power Supplies And Methods For Reducing Common Mode Noise - An example switched-mode power supply includes an input for receiving an input voltage from a voltage source, an output for providing an output voltage to a load, and a transformer having a primary winding, a secondary winding, and a conductive shield disposed between the primary winding and the secondary winding. The power supply also includes a neutralization signal generator circuit coupled to the conductive shield to apply a neutralization signal to the conductive shield to reduce a common mode noise between the primary winding and the secondary winding of the transformer. The neutralization signal has an adjustable amplitude and/or phase. Other example power supplies and methods are also disclosed. | 2017-06-08 |
20170163146 | VOLTAGE GENERATION CIRCUIT - According to one embodiment, a voltage generation circuit includes: a charge pump circuit configured to boost a voltage input to a first node and output a first signal to a second node; an operational amplifier configured to receive a first reference voltage and a first voltage obtained by dividing a voltage of the second node and output a second signal to a third node; a first transistor having a gate coupled to the third node, one terminal coupled to a power supply, and the other terminal coupled to the first node; a logic circuit configured to detect the voltage of the second node and output a third signal; and a charge-up circuit configured to receive the third signal and charge a voltage of the third node. | 2017-06-08 |
20170163147 | METHODS AND APPARATUS FOR GENERATION OF VOLTAGES - Methods of operating voltage generation circuits include applying a clock signal to a first electrode of a first capacitance having a second electrode connected to a first node of a first current path, applying the clock signal to a second capacitance having a second electrode connected to a gate of a second current path connected in parallel with the first current path and with the second electrode further connected to a first end of a resistance having a second end connected to the second node, passing charge across at least one of the first current path and the second current path while the clock signal has a first logic phase, and mitigating current flow across the first current path and the second current path while the clock signal has a second logic phase opposite the first logic phase, as well as apparatus facilitating such methods. | 2017-06-08 |
20170163148 | REFERENCE VOLTAGE GENERATOR HAVING AT LEAST ONE BIPOLAR JUNCTION TRANSISTOR BIASED BY NEGATIVE BASE VOLTAGE AND ASSOCIATED REFERENCE VOLTAGE GENERATING METHOD - A reference voltage generator has a bandgap reference circuit and a negative voltage generator. The bandgap reference circuit generates a reference voltage according to at least one base-emitter voltage of at least one bipolar junction transistor. The negative voltage generator generates a negative voltage, wherein at least one base terminal of the at least one bipolar junction transistor is arranged to receive a base voltage derived from the negative voltage. | 2017-06-08 |
20170163149 | PFC SIGNAL GENERATION CIRCUIT, PFC CONTROL SYSTEM USING THE SAME, AND PFC CONTROL METHOD - A PFC signal generation circuit which generates a PFC signal to control a PFC circuit including a first inductor connected to a first switch and a second inductor connected to a second switch includes: a first control signal output circuit that outputs a first PFC signal to turn on the first switch at a zero current detection timing of the first inductor; a timing adjustment circuit that generates a control signal to turn on the second switch after waiting until a target timing, when a zero current detection timing of the second inductor is earlier than the target timing, and to turn on the second switch at a target timing in a subsequent cycle, when it is later than an allowable period from the target timing; and a second control signal output circuit that generates a second PFC signal to turn on the second switch according to a control signal. | 2017-06-08 |
20170163150 | SYNCHRONOUS BUCK DC-DC CONVERTER AND METHOD THEREOF - A synchronous buck direct current to direct current (DC-DC) converter includes a signal output terminal, an output stage circuit, a first comparator, a latch, a control logic circuit, a driver circuit and an on-time control circuit. The output stage circuit provides an output voltage to the signal output terminal according to an input voltage. The first comparator receives a reference voltage and a feedback signal related to the output voltage and outputs a control signal. The latch receives the control signal and a timing signal and outputs an on-enable signal. The control logic circuit receives the on-enable signal and outputs an on-control signal. The driver circuit controls charge/discharge time of the output stage circuit according to the on-control signal. The on-time control circuit receives the on-control signal and the input voltage and outputs the timing signal related to a duty cycle of the output stage circuit. | 2017-06-08 |
20170163151 | BUCK CONVERTER ELECTRONIC DRIVER WITH ENHANCED ITHD - Methods, devices, techniques, systems, and integrated circuits are disclosed for variably controlling a switch on time for a driver, which may enhance iTHD. In one example, a device includes an input voltage sensor configured to detect an input voltage, and a variable switch on time generator, operatively connected to the input voltage sensor to receive a signal indicative of the input voltage. The variable switch on time generator is configured to determine a variable switch on time based at least in part on the detected input voltage, and output the determined variable switch on time for controlling switch on timing of a driver switch. | 2017-06-08 |
20170163152 | METHOD AND APPARATUS FOR A DELAY LOCKED POWER SUPPLY REGULATOR - A voltage regulator includes a delay chain having a plurality of delay elements, a thermometer to binary encoder coupled to multiple nodes in the delay chain to provide a first binary number that is indicative of an estimated delay of the delay chain, and a latch coupled to the thermometer to binary encoder to receive the binary number. The voltage regulator also includes a signal processing circuit for providing a control signal indicative of a difference between the first binary number with a second binary number that represents a target delay, and a voltage control circuit coupled to the signal processing circuit for providing an output voltage based on the control signal from the processing circuit. | 2017-06-08 |
20170163153 | SOFT-SWITCHING AUXILIARY CIRCUIT - A soft-switching auxiliary circuit is provided, which may be applicable to a converter including a first main switch and a second main switch. The soft-switching auxiliary circuit may include a first auxiliary switch, a second auxiliary switch, a first energy adjustment module and a second energy adjustment module. By means of the first auxiliary switch and a second auxiliary switch, the first energy adjustment module and the second energy adjustment may properly store and adjust the energy of the converter; therefore, both the first main switch and the second main switch of the converter can achieve soft-switching. | 2017-06-08 |
20170163154 | VOLTAGE BOOST CIRCUIT - A voltage boost circuit includes an energy storage component coupled to an input voltage source; a plurality of switch units, wherein when each of the switch units is conducted, the input source, the energy storage component and the each switch unit form a conducting path, such that the input voltage source charges the energy storage component; and a control unit for sequentially conducting the plurality of switch units according to a driving signal. | 2017-06-08 |
20170163155 | Method and System for DC-DC Voltage Converters - On embodiment pertains to an apparatus including a control loop configured to receive an output voltage sense signal. The control loop includes a compensator; a PWM signal generator coupled to an output of the compensator; a reference circuit configured to receive a tracking signal, and which is configured to low bandwidth low pass filter the tracking signal when the tracking signal amplitude becomes substantially constant and representative of an output voltage that is substantially non-zero; and an error amplifier having a first input coupled to an output of the reference circuit, a second input configured to receive the output voltage sense signal, and an output coupled to the compensator. | 2017-06-08 |
20170163156 | Dynamic Voltage Transition Control Methods for Switched Mode Power Converters - A method of controlling a voltage regulator includes regulating a voltage output by the voltage regulator to correspond to a target voltage, generating a voltage ramp that starts at a first voltage and ends at a second voltage and responsive to the voltage ramp, modifying the output voltage response of the voltage regulator based on one or more compensation parameters. | 2017-06-08 |
20170163157 | High Efficiency Multi-Level Buck-Boost Converter - A power converter for converting an input voltage at an input port into an output voltage at an output port of the power converter is described. The power converter comprises an inductor having a first inductor port and a second inductor port, wherein the second inductor port is coupled to the output port. Furthermore, the power converter comprises a flying capacitor having a first capacitor port and a second capacitor port, and a switching cell. In addition, the power converter comprises a control unit to operate the switching cell in a first sequence of operation phases to perform step-up conversion; and in a second sequence of operation phases to perform step-down conversion. | 2017-06-08 |
20170163158 | DIRECT CURRENT TRANSMISSION INVERTER SIDE FREQUENCY CONTROL METHOD - A high voltage/ultrahigh voltage direct current transmission inverter side frequency control implementing method includes: transmitting a deviation between the inverter side power grid frequency and rated frequency to the inverter side frequency controller, wherein the frequency controller regulates and outputs a modulation quantity by adopting self-adaptive parameters according to different operation conditions; when the interstation communication is normal, the modulation quantity output of the inverter side frequency controller causes the rectifier side and the inverter side to form a new power/current order through the interstation communication; when the interstation communication is abnormal, converting the inverter side to current control from voltage control and converting the rectifier side to voltage control from current control; superposing the modulation quantity output of the inverter side frequency controller to the power/current order of the inverter side, changing the size of the transmission power to realizing the inverter side frequency control. | 2017-06-08 |
20170163159 | Control of Asymmetric Parallel Synchronous Rectifiers in Power Converter Topologies - A power converter includes an input power source, a synchronous rectifier and a controller. The synchronous rectifier includes a plurality of actively controlled switches coupled in parallel and configured to rectify current delivered from the input power source to a load. The controller is operable to issue a first control signal for driving a first one of the actively controlled switches and issue a second control signal for driving a second one of the actively controlled switches. The first control signal is a different control signal than the second control signal so that the first actively controlled switch is controllable separately from the second actively controlled switch. The first actively controlled switch has a higher current-carrying capacity than the second actively controlled switch. | 2017-06-08 |
20170163160 | MODULAR BATTERY ARRAYS AND ASSOCIATED METHODS - A modular battery array includes a plurality of battery modules electrically coupled in series to a high-voltage electric power bus, a low-voltage electric power bus, and a respective switching power converter electrically interfacing each of the plurality of battery modules with the low-voltage electric power bus. Each of the plurality of battery modules includes a plurality of battery cells electrically coupled in series and at least one switching power converter for balancing energy stored in the plurality of battery cells of the battery module. | 2017-06-08 |
20170163161 | POWER SUPPLY DEVICE AND SEMICONDUCTOR DEVICE - A power supply device includes a primary winding and at least a first secondary winding connected to a load, a power supply to which the primary winding is connected, a switch configured to adjust a first current flowing through the primary winding, an adjustment amount generation device and a control device. The adjustment amount generation device is configured to generate an adjustment amount to reduce a change in the first current depending at least in part on a change in an output voltage of the power supply supplied to the load. The control device is configured to control the switch based at least in part on the first current, a voltage produced in secondary winding, and the adjustment amount. | 2017-06-08 |
20170163162 | FLYBACK POWER CONVERTER WITH PROGRAMMABLE OUTPUT AND CONTROL CIRCUIT AND CONTROL METHOD THEREOF - The present invention provides a flyback power converter with a programmable output and a control circuit and a control method thereof. The flyback power converter converts an input voltage to a programmable output voltage according to a setting signal, wherein the programmable output voltage switches between different levels. The flyback power converter includes: a transformer circuit, a power switch circuit, a current sense circuit, an opto-coupler circuit, and a control circuit. The control circuit adaptively adjusts an operation signal according to a level of the programmable output voltage, to maintain a same or relatively higher operation frequency of the operation signal when the programmable output voltage switches to a relatively lower level, so as to maintain a phase margin while supplying the same output current. | 2017-06-08 |
20170163163 | SOFT-SWITCHED BIDIRECTIONAL BUCK-BOOST CONVERTERS - A bidirectional buck-boost converter includes at least one soft-switching cell to reduce switching losses by providing soft-switching of all semiconductor devices. A soft-switching cell comprises an active switch coupled in series with an inductor, a two-winding transformer, and a reset-voltage circuit. The soft-switching cells enable the buck and boost rectifiers to turn off with a controlled turn-off rate of their current to minimize their reverse-recovery losses, the power-controlling buck and boost switch to turn on with zero-voltage switching (ZVS), and the switch of the soft-switching cell to turn off with zero-current switching (ZCS). | 2017-06-08 |
20170163164 | ENERGY TRANSFER ELEMENT WITH CAPACITOR COMPENSATED CANCELLATION AND BALANCE SHIELD WINDINGS - Energy transfer element circuitry for use in a power converter includes a cancellation shield winding wound around an energy transfer element core. A first trimming capacitor is coupled to a first end of the cancellation shield winding to adjust a shield response of the cancellation shield winding. A second end of the cancellation shield winding is unconnected. A primary winding is wound around the energy transfer element core. A balance shield winding is wound around the energy transfer element core. A second trimming capacitor is coupled to a second end of the balance shield winding to adjust a shield response of the cancellation shield winding. A first end of the balance shield winding is unconnected. A secondary winding is wound around the energy transfer element core. | 2017-06-08 |
20170163165 | METHODS AND APPARATUS OF CONTROLLERS FOR POWER CONVERTER WITH PARALLEL POWER CHANNELS HAVING INDEPENDENT DC BUSES - Certain embodiments of the present invention relates to a method for controlling operation of a parallel converter system. The parallel converter system includes multiple parallel power converters, and each of the parallel power converters is coupleable to a corresponding controller. The method includes: generating, via each of the controllers, a channel reference signal, transmitting each of the generated channel reference signals to a corresponding one of the parallel power converters, and adjusting an output current of each of the parallel converters responsive to the corresponding channel reference signals received, the adjusting controlling a combined output current of the parallel converter system. The channel reference signals of these parallel power converters are generated in response to the participation factors of each of the parallel power converters, and a net converter output reference current. | 2017-06-08 |
20170163166 | AC-AC VOLTAGE TRANSFORMATION DEVICE AND VOLTAGE TRANSFORMATION METHOD THEREOF - An AC-AC voltage transformation device is provide, which includes: a first diode (D | 2017-06-08 |
20170163167 | POWER TRANSMISSION DEVICE - This power transmission device is connected between an AC wiring system connected to an AC power supply, and a DC power supply, and transmits power from the DC power supply to the AC wiring system. The power transmission device includes an AC power supply voltage signal generator, a power converter, a DC voltage conversion unit, a switching element, and a switch open/close signal generator. The switch open/close signal generator includes: a control signal generation unit to generate a control signal formed from a pulse signal; and a pulse width determination unit to receive the control signal and generate a delayed signal obtained by delaying rising of the control signal, and when the delayed signal becomes a value corresponding to a magnitude of voltage of the AC power supply voltage signal, cause the control signal to fall, thereby making the control signal into the switch open/close signal. | 2017-06-08 |
20170163168 | METHOD FOR OPERATING AN AT LEAST GENERATOR-OPERABLE ELECTRIC MOTOR AND MEANS FOR THE IMPLEMENTATION THEREOF - A method for controlling a multi-phase electric machine, operable at least in generator mode, whose phase terminals in an active bridge rectifier are respectively connected, via addressable first current valves capable of being switched on and shut off, to a first DC voltage terminal and via second current valves to a second DC voltage terminal. The method includes: in a generator mode of the electric machine after occurrence of a load dump, repeatedly initiating and discontinuing phase short circuits of the phase terminals via the first current valves. A magnitude characterizing a natural frequency of the electric machine is ascertained, and the first current valves are addressed with a switching frequency in order to initiate and discontinue the phase short circuits on the basis of the magnitude characterizing the natural frequency of the electric machine. | 2017-06-08 |
20170163169 | RECTIFYING CIRCUIT FOR HIGH-FREQUENCY POWER SUPPLY - Disclosed is a rectifying circuit for high-frequency power supply that rectifies an alternating voltage at a high frequency equal to or higher than 2 MHz, the rectifying circuit for high-frequency power supply including half-wave rectifier circuit that rectifies the alternating voltage inputted from a reception antenna for power transmission 10, a partial resonance circuit that causes the half-wave rectifier circuit to perform partial resonance switching in a switching operation at the time of rectification, a matching functional circuit that has a function of matching a resonance condition to that of the reception antenna for power transmission 10, and a function of matching the resonance condition to that of the partial resonance circuit, and a smoothing functional circuit that smooths the voltage rectified by the half-wave rectifier circuit into a direct voltage. | 2017-06-08 |
20170163170 | PROTECTION SYSTEM FOR DC POWER TRANSMISSION SYSTEM, AC-DC CONVERTER, AND METHOD OF INTERRUPTING DC POWER TRANSMISSION SYSTEM - A traction motor comprises a stator, a rotor core, an iron core holder, a cooling fan, a rotor, a frame, a bracket, and a bearing unit. The cooling fan includes a main plate that separates the inside and the outside of the totally-enclosed traction motor; blades provided on the bracket side of the cooling fan and along a rotational direction of the rotor; and a guide provided on the bracket side of the blades. In the bracket, inlets are provided within an area obtained when the guide is projected onto the bracket. The guide is formed such that air drawn in through the inlets is guided to a rotor shaft. | 2017-06-08 |
20170163171 | APPARATUS AND METHOD FOR CONTROLLING ASYMMETRIC MODULAR MULTILEVEL CONVERTER - Disclosed is an apparatus and method for controlling an asymmetric modular multilevel converter which allow numerous levels to be expressed according to a combination of modules each using a different voltage, comprising: an asymmetric arm configured with a full bridge and a half bridge; and a control method of controlling each capacitor level of the full bridges and capacitor level of the remaining half bridges to be different from one another by a full bridge structure, wherein each module configuring the asymmetric arm uses a different voltage and an output voltage is expressed by a combination thereof. | 2017-06-08 |
20170163172 | TURN-OFF OVERVOLTAGE LIMITING FOR IGBT - A turn-off overvoltage limiting for IGBT is described herein. The injection of a sample of the overvoltage across the IGBT in the gate drive to slow down the slope of the gate voltage decrease only during the overvoltage above a predetermined value is described herein. Techniques to increase the parasitic inductance to allow the control to limit an overvoltage at turn off of the second IGBT are also described herein. | 2017-06-08 |